https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77582
Jonathan Wakely changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77582
--- Comment #5 from Jonathan Wakely ---
Author: redi
Date: Fri Sep 23 17:25:34 2016
New Revision: 240447
URL: https://gcc.gnu.org/viewcvs?rev=240447&root=gcc&view=rev
Log:
Avoid reallocation for basic_string::clear()
PR libstdc++/56166
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77582
Jonathan Wakely changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77582
--- Comment #3 from Cong Wang ---
Hi, Andrew
I just posted it:
https://gcc.gnu.org/ml/libstdc++/2016-09/msg00051.html
Please review.
I caught this when using Google protobuf on Fedora 21, _M_mutate() is shown in
perf top profile, inlined into
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77582
--- Comment #2 from Andrew Pinski ---
Patches goto gcc-patches@ and libstdc++@. Note !_GLIBCXX_USE_CXX11_ABI is most
likely not going to be used for 90% of applications. It is only needed if you
are linking between old binaries and using the ne
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77582
--- Comment #1 from Cong Wang ---
Created attachment 39614
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39614&action=edit
A possible patch
This patch improves it by using _S_empty_rep directly when
_GLIBCXX_FULLY_DYNAMIC_STRING is not en
